Glowworm Ultimate Ingition Problems

[SimonGurner]

Hi,

Don't know whether anyone can help me here - I've got a Glowworm Ultimate 60FF boiler. Last month the boiler would not ignite the main burner and from diagnosis, the pilot was not signalling back when it was lit (constant sparking seen in the pilot). The electrode was replaced (although it wasn't the problem as the old one worked with the new PCB), and after changing the PCB this seemed to resolve the problem and all was working fine. 2 weeks later the problem re-occured with exactly the same symptoms. Considering it as a faulty PCB, this was changed and all has been fine. Last night, again approximately 2 weeks on, the boiler has started emitting exactly the same problem with the 'pilot lit' trigger not responding and starting the main burner again.

Anyone any ideas on this...

Simon

 

[herebriefly]

When was it last (properly) serviced?

David.

 

[SimonGurner]

Hi David,

It was last serviced 4 weeks ago when the problem first happened. Before that 2 years prior...

 

[ducatikid]

The electrode leads used to pinch going through the case on these so that might well be worth investigating. But firstly is the pilot good and proud? Maybe its not rectifying if poor pilot. Just to add all of this is for your gas engineer to investigate!!!

 

[SimonGurner]

Hi ducatikid,

Thanks for the reply. We did suspect this the first time, and to be sure replaced the electrode which is a single piece with the cable itself. We tested the new board with both the old and new electodes (and cables) which were both fine.

The pilot light is very strong in all accounts. The new electrode was changed with the 1st PCB change just to be on the safe side....

 

[ducatikid]

So to re-cap , the boiler broke down , then electrode and lead (and eventually pcb) replaced and serviced at the same time? This still sounds like a simple enough fault but without being there is going to be very difficult to pin point. Double check connections on pcb , ensure electrode is nice and tight on there , whilst faulty new parts happen they can be rare enough , failing that could be looking at a solenoid on the gas valve. But again don't like/want to guess at these things , get your engineer back to test . Good luck.

 

[herebriefly]

It wasnt serviced properly.

I cant tell you the fault (forum rules), but as you have had a new HT lead, pcb (twice), your barking up the wrong tree. Most service engineers know the inherrant fault on these.

ducatikid has highlighted it.

Id have it fixed in 20 minutes.

 

[SimonGurner]

Hi David,

Thanks for coming back - if you're talking about the inherent blocked jets (the 2 tiny holes) then this was the first thing we checked and cleaned just to be sure. As for the solenoids - that'll be the next thing to check....

 

[transam]

There are 2 such gloworm ultimate prob's in the C.C , ignition lead's , fan's , piolot assembly's have been changed , P.C.B's have been changed , the consensus at the moment is that it is a house wiring fault ??
If any one want's to take a look in the C.C it is under gloworm ultimate 120 !!!!

 

[SimonGurner]

Hi transam,

What's the C.C?

 

[transam]

Hi transam,

What's the C.C?

C.C = Combustion Chamber , it is a forum for reg' gas installer's only !!!